1) Salem Data Services has two kinds of expenses; fixed and variable. As you can see in the chart below, variable expenses with respect to hours are ‘Power’ and ‘Operations: Hourly Personnel’. Fixed expenses with respect to revenue hours include; rent, custodial services, computer leases, maintenance, depreciation of computer and office equipment, systems development and maintenance, administration, and sales.
2) The chart below lists variable expenses with respect to revenue and lists the cost per revenue hour. The variable costs per hour are 28.70. January February March
Power 1,546 1,485 1,697
Operations: Hourly Personnel 7,896 7,584 8,664
Total Variable Costs 9,442 9,069 10,361
Total Revenue Hours 329 316 361
Variable Costs per Hour 28.70 28.70 28.70 *This information was derived from exhibit 1 and 2 in the case.
3) By breaking out the